Patents by Inventor Joseph Giancarlo Sabato

Joseph Giancarlo Sabato has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20100200189
    Abstract: A method for making a turbine airfoil includes providing a mold core and an outer shell which cooperatively define a cavity in the shape of a hollow airfoil having an outer wall, a root, and a tip. A tip portion of the core extends completely through the portion of the cavity defining the tip of the airfoil. The core is restrained to prevent movement between the core and outer shell. Molten metal is introduced into the cavity and solidified to form an airfoil having at least one outer wall which defines an open tip and a hollow interior. A metallic tip cap is formed on the outer wall which substantially closes off the open tip. The tip cap may be formed by packing the airfoil with metallic powder; and laser sintering the exposed powder so as to form a tip cap which is metallurgically bonded to the outer wall.
    Type: Application
    Filed: February 12, 2009
    Publication date: August 12, 2010
    Applicant: General Electric Company
    Inventors: Huan Qi, Magdi Azer, Prabhjot Singh, Todd Jay Rockstroh, Sudhir K. Tewari, Joseph Giancarlo Sabato, Donald Brett Desander, Mark Douglas Gledhill
  • Publication number: 20090165988
    Abstract: A method for making a turbine airfoil includes: (a) providing a mold having: (i) a core; (ii) an outer shell surrounding the core such that the core and the outer shell cooperatively define a cavity in the shape of an airfoil having at least one outer wall; and (iii) a core support extending from the core to the outer shell through a portion of the cavity that defines the at least one sidewall; (b) introducing molten metal alloy into the cavity and surrounding the core support; (c) solidifying the alloy to form an airfoil casting having at least one outer wall which has at least one core support opening passing therethrough; (d) removing the mold so as to expose the airfoil; and (e) sealing the at least one core support opening in the airfoil with a metal alloy metallurgically bonded to the at least one outer wall.
    Type: Application
    Filed: December 31, 2007
    Publication date: July 2, 2009
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Todd Jay Rockstroh, Sudhir K. Tewari, Joseph Giancarlo Sabato, Donald Brett Desander, David Henry Abbott, Mark Douglas Gledhill
  • Patent number: 7322396
    Abstract: A hollow airfoil is fabricated by providing a casting mold assembly including a casting mold, a casting core, and a standoff spacer that prevents the casting core from contacting the casting mold to define a casting space. A first nickel-base superalloy is cast into the casting space and solidified to form the hollow airfoil. The presence of a through-hole extending through a wall of the hollow airfoil is identified, and the through-hole is closed by welding using a second nickel-base superalloy, without using any freestanding closure element.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: January 29, 2008
    Assignee: General Electric Company
    Inventors: Christine Govern, Thomas Joseph Kelly, Joseph Giancarlo Sabato